Motion Test

1. In which situation is the acceleration of the car negative?

The velocity of a car was 75 km/h over 4 hours.

The velocity of a car reduced from 50 km/h to 35 km/h over one minute.

The velocity of a car increased from 40 km/h to 75 km/h over 15 minutes.

2. The _____ of an object consists of its speed and direction.

Velocity

Instantaneous speed

Average speed

Displacement

None of these are correct

3. What is the velocity in meters per second of a runner who runs exactly 110 m toward the beach in 72 seconds.

0.654 m/s toward the beach

1.53 m/s toward the beach

15.3 m/s toward the beach

7920 m/s toward the beach

4. When an object slows down, its acceleration is

Positive.

Centripetal.

Negative.

Constant.

Centrifugal.

5. A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.

3.5 m/s2

5.7 m/s2

20 m/s2

70 m/s2

6. Roger and Natalie travel in similar cars. Roger's car drives the two miles to school in 7.5 minutes. Natalie drives the same distance in the opposite direction but in only 6.5 minutes. What is true of their velocities?

Roger and Natalie have velocities with the same magnitude only.

Natalie's velocity is greater in magnitude than Roger's velocity.

Roger's velocity is greater in magnitude than Natalie's velocity.

Roger and Natalie have velocities with the same direction and magnitude.

7. An airplane is flying at 635 mi/h at an altitude of 35,000 ft. It is currently over Kansas and is approximately 16 min ahead of its scheduled arrival time. What is its velocity?

635 mi/h

16 mi/min

35,000 ft/s

This cannot be determined without further information about its direction.

This cannot be determined without further information about its time.

8. Marcus drove his Honda Prelude for 4 hours at a rate of 55 miles per hour. How far did he travel?

11 miles

55 miles

110 miles

220 miles

9. A pitcher throws a baseball to home plate, a distance of 60.5 ft. The ball reaches home plate in 0.63 s. What is the velocity of the ball?

96 ft/s toward home plate

38 ft/s toward home plate

38 ft/s

96 ft/s

This cannot be determined without further information about its time.

10. Speeding up, slowing down, and changing direction is best described as

Only time.

Only distance.

Both time and distance.

Neither time nor distance.

Time, distance, and direction

11. A cheetah can accelerate at up to 6.0 m/s². How long does it take for a cheetah to speed up from 10.5 m/s to 12.2 m/s?

Speeds up.

Slows down.

Changes direction.

Is stationary.

12. An object is in motion when

Average velocity.

Average speed.

Average acceleration.

Negative acceleration.

Instantaneous speed

13. Which straight-line acceleration indicates an increase in speed?

0 m/s2

15 m/s2

4 m/s2

All of these.

None of these.

14. An airplane is flying at 635 km per hour at an altitude of 35,000 m. It is currently over Kansas and is approximately 16 minutes ahead of its scheduled arrival time. What is its velocity?

635 km/h

16 m/min

35 000 m/s

This cannot be determined without further information about its direction.

This cannot be determined without further information about its time.

15. The difference between speed and velocity is that velocity includes

Direction

Distance

Time

Weight

Force

16. The average speed of a runner who runs 500.0 m in 1.6 min is

0.19 m/s.

5.2 m/s.

96 m/s.

312 m/s.

250 m/s.

17. Which car is accelerating?

A car that is unmoving

A car that goes around a curve at a constant speed

A car that travels in straight line at a constant speed

A car that is set to a constant speed of 60 miles per hour

18. On a bus traveling north at 20.0 m/s, a child stands up and walks toward the back of the bus at 1.3 m/s. What is the child’s resultant velocity?

18.7 m/s north

18.7 m/s south

21.3 m/s north

21.3 m/s south

This cannot be determined without further information about the direction of the bus.

19. Which of the following speeds is the most accurate?

100 miles per day

100 miles per hour

100 miles per minute

100 miles per second

Cannot be determined from the information given.

20. When centripetal acceleration occurs, an object

Velocity.

Distance.

Displacement.

Acceleration.

Distance or displacement

21. Which of the following does not indicate velocity?

14 ft/s SSE

40 mi/h toward the town square along the main street

80 km/h going from New York toward New Jersey

28 miles from Los Angeles to Catalina Island

All of these indicate velocity.

22. In order to determine speed, you must know

The net force acting on the object is zero.

Friction occurs.

The object’s displacement is greater than the distance traveled.

The object changes position relative to a frame of reference.

All of these are correct.

23. Moving from 0 m/s to 25 m/s in 8.0 s equals an average acceleration of

0.32 m/s.

0.32 m/s2.

3.1 m/s.

3.1 m/s2.

None of these are correct.

24. On a distance vs. time graph of an object’s motion, distance is usually

Plotted on the x-axis.

Greater than time.

The dependent variable.

Measured in ft/min.

All of these are correct.

25. The distance traveled by an object divided by the time it takes to travel that distance is called

0.08 mi.

13 mi.

55 mi.

234 mi.

225 mi.

Motion Test

1. In which situation is the acceleration of the car negative?

2.

What first name or nickname would you like us to use?

2. The _____ of an object consists of its speed and direction.

3. What is the velocity in meters per second of a runner who runs exactly 110 m toward the beach in 72 seconds.

4. When an object slows down, its acceleration is

5. A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.

6. Roger and Natalie travel in similar cars. Roger's car drives the two miles to school in 7.5 minutes. Natalie drives the same distance in the opposite direction but in only 6.5 minutes. What is true of their velocities?

7. An airplane is flying at 635 mi/h at an altitude of 35,000 ft. It is currently over Kansas and is approximately 16 min ahead of its scheduled arrival time. What is its velocity?

8. Marcus drove his Honda Prelude for 4 hours at a rate of 55 miles per hour. How far did he travel?

9. A pitcher throws a baseball to home plate, a distance of 60.5 ft. The ball reaches home plate in 0.63 s. What is the velocity of the ball?

10. Speeding up, slowing down, and changing direction is best described as

11. A cheetah can accelerate at up to 6.0 m/s2. How long does it take for a cheetah to speed up from 10.5 m/s to 12.2 m/s?

12. An object is in motion when

13. Which straight-line acceleration indicates an increase in speed?

14. An airplane is flying at 635 km per hour at an altitude of 35,000 m. It is currently over Kansas and is approximately 16 minutes ahead of its scheduled arrival time. What is its velocity?

15. The difference between speed and velocity is that velocity includes

16. The average speed of a runner who runs 500.0 m in 1.6 min is

17. Which car is accelerating?

18. On a bus traveling north at 20.0 m/s, a child stands up and walks toward the back of the bus at 1.3 m/s. What is the child’s resultant velocity?

19. Which of the following speeds is the most accurate?

20. When centripetal acceleration occurs, an object

21. Which of the following does not indicate velocity?

22. In order to determine speed, you must know

23. Moving from 0 m/s to 25 m/s in 8.0 s equals an average acceleration of

24. On a distance vs. time graph of an object’s motion, distance is usually

25. The distance traveled by an object divided by the time it takes to travel that distance is called

11. A cheetah can accelerate at up to 6.0 m/s². How long does it take for a cheetah to speed up from 10.5 m/s to 12.2 m/s?